There are very few published writings by those that sat in positions of power during the period leading up to and during the Second World War that are of this personal and telling nature. This is the great difference between Ciano's Diary and the writing of the defeated or victorious from this time.
Ciano was not looking back and writing in an attempt to absolve himself of his role nor was he allowing the glow of victory to taint his recollection of events. These sometimes seemingly shallow entries in his personal diary can allow us to view events of unfathomable consequence from his seat and without the ideological raging or gossamer thin excuses and attempts at self absolution of many other works; Albert Speer being a prime example of the latter; written by politicians or those that held office at this time.
To read this Diary in search of ideological or moral answers would be misdirected but to study this Diary and gain insight into Ciano, Mussolini and the machinations and power struggles of what was in reality a far from stable Dictatorship with an often tenuous alliance with Hitler's Reich would be to serve yourself well. This is a work that no scholar of Politics or History should overlook.